Downtown Pet Supply 2" Wide Large Premium Leather Studded Dog Collars, Heavy Duty Big Spiked Dog Collar (Red, Black, Brown Colors) Durable 100% leather collar with nickel-plated hardware Decorated with studded charm 5 adjustment holes for custom fit 2" wide, 3/16" thick, real leather, sturdy but light Overal length 27", fits 21" - 24" neck Medium: Overall length 23&#034;, fits 15&#034; - 20&#034; neck Large: Overall length 25&#034;, fits 17&#034; -21&#034; neck X-Large: Overall length 27&#034;, fits 19&#034; - 23&#034; neck